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Java 14 preview seems not to be working properly

See original GitHub issue

Hello,

I just set up a project and I need to try textblock. I wrote the following pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.kearny</groupId>
    <artifactId>rope</artifactId>
    <version>1.0-SNAPSHOT</version>
    <name>RopeTextEditor</name>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>14</maven.compiler.source>
        <maven.compiler.target>14</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.openjfx</groupId>
            <artifactId>javafx-controls</artifactId>
            <version>14.0.1</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.openjfx</groupId>
                <artifactId>javafx-maven-plugin</artifactId>
                <version>0.0.4</version>
                <configuration>
                    <source>14</source>
                    <target>14</target>
                    <release>14</release>
                    <mainClass>com.kearny.rope.RopeTextEditor</mainClass>
                    <commandlineArgs>--enable-preview</commandlineArgs>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

With the following java class only:

package com.kearny.rope;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class RopeTextEditor extends Application {

   @Override
   public void start(Stage stage) throws Exception {
       var javaVersion = System.getProperty("java.version");
       var javafxVersion = System.getProperty("javafx.version");
       var label = new Label("Hello, JavaFX " + javafxVersion + ", running on Java " + javaVersion + ".");
       var scene = new Scene(new StackPane(label), 640, 480);
       stage.setScene(scene);
       stage.show();

       Object test = """
               <html>
                   <body>
                       <p>Hello, world</p>
                   </body>
               </html>
               """;

       if (test instanceof String) {
           System.out.println(test);
       } else {
           System.out.println(test);
       }
   }

   public static void main(String[] args) {
       launch(args);
   }
}

I get this error: Error:(20,23) java: text blocks are a preview feature and are disabled by default.

Is there something wrong with my configuration ?

Issue Analytics

State:
Created 3 years ago
Comments:6 (3 by maintainers)

Top GitHub Comments

1reaction

Kearnycommented, May 14, 2020

How I see, I was doing either one or the other. Not both (runtime and compile time). Thx for the help.

1reaction

betanzoscommented, May 14, 2020

This work for me.

<plugin>
	<groupId>org.apache.maven.plugins</groupId>
	<artifactId>maven-compiler-plugin</artifactId>
	<version>3.8.0</version>
	<configuration>
		<compilerArgs>
		    <!-- Required at compile time -->
                    <arg>--enable-preview</arg>
		</compilerArgs>
	</configuration>
</plugin>
<plugin>
	<groupId>org.openjfx</groupId>
	<artifactId>javafx-maven-plugin</artifactId>
	<version>0.0.4</version>
	<configuration>
		<options>
		    <!-- Required at runtime (javafx:run) -->
		    <option>--enable-preview</option>
		</options>
		<mainClass>gui/com.betanzos.App</mainClass>
	</configuration>
</plugin>